1. (2023高一下·浙江期中) 听下面一段材料，回答问题。

1. （1） What is the main reason for the speaker's running a marathon?

   A . To keep herself healthy. B . To challenge and prove herself. C . To express her admiration for runners.
3. （2） Why did the speaker change her training schedule?

   A . She got sick. ` B . She was busy working. C . She preferred running alone.
5. （3） How did the speaker feel in the end?

   A . Exhausted. B . Proud. C . Regretful.